Hydraulic motor.



2 SHEET-SHEET 1.

No. 884,654. PATENT-ED APR. 14', 1908. R. B. eoomucn. HYDRAULIC Moms; APPLIOATION I LED 001218. 1907.

Mm BROWN. ooonmoii, owLvt' NNArI, on o 'f' and n which'iil QFFICE HYDRAULIC Moron] 1 i sp eeification 6 Letters Patent.

' I Pa tented LI 'QIZ BQS.

Applicationflled October 1.5,--1 e07. iser'in maxim To "all whom it may concern.

B'e it known thatl, RALPH BnowN nlcn e eitiz en of the UnitedStetes, residing at Cincinnati, in the county of Hamilton and I State of Ohio, have invented certain new' and provements in Hydraulic Motors,. of. which the following is a specification.

useful Irn This invention reletesto the' subj eet of hydraulic motors, and has special reference to that typeof motors known as oscillating motore including in their organization an oscillating piston or vane or semi rotary syvee h'ousingthe. se ne, an "ing a'corres drive 'shaft, i

To' this and the invention has in view the provision of certain practicalimprovements 1'11 oscillating motors of the-character which are employed for.mechanicallyoperating the working elements of washing: machinesor other light machinery where a motor with an oscillating drive shaft can be utilized.

thereby communicat- In thisf iconn ection the, present invention an exceedingly sun-- contmpletee a motor of pie, yet thorolfihlgg practical, construction,

t eperts ere compactly arranged so as to 'the operating piston while at'the same time securing certainty and positiveness' of action in the operation of admitting andexhaustmg the motor fluldet :eitlwr side-of the oscillatingpij's'to'n. A p v.

Dneofthe' distinctive objects of the inven-' tion -is 1m 1 rovide an impro'ved -valve equip ment for-t e rately. 'Also in this-connection, th'invenet1on provides a novel valve actlonto not only secure a positive and reliable opening and but which also entirelyclosing of 'the'velves, obviates lost motion, br .thej chattering;

which is common to the valve pertsoi other oeeil'latingmot'oirs on the market, M a general objeegflthe invention" has in view-.theimprovement oflthe entire motor- ,from a structural standpoint, ineluding the provision of Lqlua tej means "for effecting watertight" ihts pvithout the use of] -Wi-th' thesea'ijd' nature of the i n'vontion' l the same consists in the ppepr as the mivei Fonetrilction,

having an oscillatory (within the cylinder pending motion to the motor or given maximum sweep'to 1 v niotor, wherebythevelve cage may be?- contrueted economical] y and .eccufor. "the icylind'er parts other expensive or objects in J ina-fter more full described,ill'ustrateoigngl l'cleimed. 1 H t l -Tl!e essential features of the invention, ill-- volved in cerrying out the-foregoing objeets, g ere'neces.

the invention} but 1' thereof is sh own. in' th'e accompanying dre'ivings, inyvhich': ,i v i igure l is a top plan view ofenjosfilleting motor constructed in'aoeordenee" with the present invention, der herul removed to expose the interior'perts' the viewjelso indicating "the valves helti closed by the .iyetenpreseure exerted in the.

he arrow Fig. I. is e 'l' orizontel seetiohe l view on {he limi g--12 ofEig. 3, but illuetra tmg-piston advanced from the" 'iosition shown iii Fig. toe-position where.tl reparts are ready to releese -the inlet vnlt ein tn direetion inglicetecl by; ,the arrow in Fig. Fig-3 is '3 Vertical sectional view oirthe e 3 -3 0f'Fig.. l. Fig. 4 is n (let-ail in-pe P36, tive of the vulve ege. showlng tlm on 'ngplates thereof separated,relatiozrg, Fig. 'ls' erletail in per per-five of one of 't'hmvalve act-(raters or; actniiting springs eerrie'd upon fluid tight'wv (lge joint provided between the cylinder heads and theegl es of the'cylinder .bodj so asfto dis en se Witl-rjt-lie em )lonrirent of interpo'sed 'pacllingi 7 is a etai! sec;

tionel'- view illustrating rences designate. eorrespomling .verel figiires of me drawings.

er; perts'inth' The work ng i are housed designated in its borly 2 and the upper and heads 3 and 4','i'espeetively.' The'saiil upper end lower-heads. 3 and ['4 areusua-llyqn preferably, si lbstantiel; :struetiori, end eeoh of the some cons circular casting provideil ut it 1 retaining flange 5 overle'pplng eclgeportion of the cylin'jrlr boil M provided at its peripherelerlge with relity ofofistem ists,

2, 1 anti iile I erily susceptible to strueture'l nio ii ll'ltfitlOIl wlthout departin from-the sc opeof a 'preerred embodiment;

ilirection of the (lottwl line arrow; and piston moving in the :lireetion. of the full 1 the stn'fiin boxjoom *stru'etion eerried by each eyli nder. ead. I

in a circular easing {usually termed a motor cylinder. Thi jcylindem 0 entirety by the numengi-L I; end essentially consists of e eireular..eyiindemme lower cylinder:

duplicates "in '.eo?

i-ng bolt ears 6 alining with no @onibination, enderrengement of parts here showing the upperoyliheachslrle of theractue-tmg piston." Fig. 6'- is'a' details etio nel view illustrative-oft the '95 parts" of. the irnprovegimotor the corresponum ears of the corres onding head to receive t e series of tie bo ts Tarranged about the exterior of the cylinder body providing means for detachably and adjustably clam ing the cylinder heads u'pon I the opposite e ge portions of the said body 2.

- of packing to cause mage to the piston packing, as is well known to those familiar withlthis class of motors. The improved fluid-tight joint referred to is effected in the present invention by forming the upper and lower edges of the cylinder bed 2 with an angular wedgerib 8 having a we ging fit in the correspondingly shaped groove or cleft '9 formed in the inner lanes of the heads 3 and 4 contiguous to the retaining flanges 5 thereof. In connection with this detail it is to be no ted that the wedging acmay be out in the head castings at an an leition is caused by having the angle of the ribs 180i a different degree from the angles of the grooves 9; 'For instance, the said grooves 9 jot, say 60,-and the ribs 8 formed on t e circular wall or body 2 turned to a V at an angle of about The degree of relative angles of the se arate parts can be changed,

.but the fact of iaving the elements 8 and 9 .cut to Vs of different angles, necessarily causes tlie'wider angles of the cylinder body -or wall 2 -to swage into the narrower angles of the coves .9, therebyeifectuaily prevent- In addition to the elements described, each of the cylinder heads 3 and l is provided. at

the center thereof with a stuffing boxdesignated inits'entiretyby the reference number 10 essentially consisting of the lacking cupv 11 accommodating therein thas aft packing l2, and interiorly threaded, aspat 15, to ac ,oonnn'odate the threaded portion of the pack -ing gland 1 4,, carryingat'its outer end a wrench head or nut 15: (See Fig.7 Thc'shaft pacle ing 12 held in the stuffing boxes 10 of the opposite cylinder'heads-S and 4 is designed to effectuallypack the upper and lowerportions of the central drive sha t 16, one end portion of which shaft projects outside the motor cylin., der creasing, and is designed to be coupled by suitable meansto'the part or machinery to be driven by the motor, all of which is well understood lay/those skilled in the art. The

central drive shaft 16. is preferably of a hol low formation so as to accommodate therein lu-b icat' grease which finds outlet tothc ac mg 0 the stufiing boxes through the subricitin 7.0f t e. drawin s.

holes 17 as suggested in detail also frequently .frays sufiieiently he opposite stu ng boxes 10 act as the journal earings for the opp-osite portions of piston preferably consists of a body vane 19.

radially arranged with reference to the drive shaft 16 and. rigidly secured at its inner-end as at 20 to said raft so as to turn therewith in the operation of the motor.

In addition to the body vane 19 the oscillatin piston 18 includes in its construction the side clamp plates 21 arranged respectively upon opposite sides of the vane and serving to clamp in position thereon the side packing sheets 22, which sheets are provided. with flange Jortions 23 contacting with the wall of the cylinder body, upper and lower flange portions 24 contacting res iectively with the upper and lower cylinder heads, and. flange portions 25 contacting with the drive shaft 1.6 respectively upon 0 )posite side of theconnection 20 between t he vane 19 and said shaft, thus securing a very effective packing for the piston within its cylinder: The said side clam plates 21 may be riveted orothen wise rigidly united tothe vane 19 and the interposed packing sheets 22, and in addition to performing the functions indicated, the side clamp plates may be utilized as a base upon which are mounted the valve actuators 26, one being arranged upon each side of the piston. Each valve actuator essentially consists of a spring body plate riveted or other wise suitably fastened on the piston, and

preferably stamped up froma single blank of sheet metal so as to be formed at o edge portions thereof with the norrna 1y olfstandin valve operating arms 27 and 28, respective y, the functions of which will presently appear.

In connection with what may be termed the upper spring valye operating arm 27 of each of the opposite valve actuators, it is to be observed that the free end of said spring arm is normally sprung away from, but is designedto have a play in front of but against, a aterally deflected lip or flange 29 on the side'clamp plate 21, which lip or flange 29 constitutes what may be characterized as'a valve releasing abutment and cooperating with the s ring arm 27 to startle en the inlet valve of t e valve equipment 0 the motor. Referring particularly to this valve equi ment of the motor, it is to be noted that. t e sarneconstitutes one of the practical-and important features of the present invention and includes three distinct elements, viz: the

osite valve cage designated in its entirety by the reference number 30, the double or double acting inlet valve designated in its-entirety by the reference number 31 and the double or double acting outlet valve designated initsentirety by thereference number32, It will be observed that the said valve cageB'Qis an i g ranged at onesidaof the axial center of the sm si.

cylinder; end hence at one side oi' the pleas of the drive shsit it, said valve csge heing 'd.isposed redielly with referenccto the axis of rotation end extending across the interval termed the upper inlet chamber 39 in coinbetween thee-heft 16 end one side of the cylinder,',end also entirely scross the space between the upper end. lower cylinder heads 3. and 4;.

A feature of importance to note in connection with the vslve cage is the fact that the said cage is made out of stamped sheet metal and. primarily consists of e. psirof duplicete complemented casing plates 33 orrsnged in op osite-porellel matching relation and designerl to accommodate the mist and outlet of the motor fluid, and, also to provide for the complete mounting of the inletsnd exhaust valves 31 and 32,'respectively. The said casing plates 33 of the valve cage are rigidly secured by. soldering, brazing, riveting or otherwise, to the well of the-cyliilder body, as at 34, and at what may be termedtheir inner edges, the casing lstes 33 are formed with parallel clamping snges35 secured to- I municstion with the supply chest 4-0 carried by the upper cylinder heed; and into the lower outlet chamber 41 in communication with the exhaust chest 42 carried by therlowcr cylinder heed, said two chests 41 and 42 being designed to have suitable pipe con ncctions therewith.

Above the horizontal partition plate 38 the opposite casin 1 plates 33 of the valve cage have drawn up t erein, with suitsbl'edies, the outwardly facing valve seats 43, end below the-plane of the partition 38 the saidplates are similsrly provided with inwardly facing valve seats 44. It is intended that the seidvelve seats 43 and 44 are to be finished suil'iciently by the forming operation to provide scsts for the valves coo crating therewith, and said valve seats are a so preferably of a conical shape 'to receive correspondingly shaped. valve heads. The said outwardly facing valve seats 48 surround what msybe termed the inlet ports 45 for the motor cylinder, while the other valve vslv e 31. Likewise, the outlet ports 46 are designed to be covered and uncovered-by the opposite spaced and reyersely 'disposed valve heads 49 canried. by a common stem 50 and provide the aforesaid double outlet valve 32. preferably provided at the outer side thereof Each inlet valve head 47 is with valve. wings 51, while corresponding -;ve.lve wings 52 are interposed between the hesds 49 of the outlet valve heads as will'be leinly seen from F ig. 3 of the drawings. lhe single stem 48 of the inlet valve projects through and beyond both casin plates of the valve cage and lies within the p ane ofmovement of the; upper valve operating spring arms 27 of the valve actiiators upon opposite sides of the piston, and likewise the stem 50 of the exhaust valve similarly projects beyond the sides of the valve c'age and lies within the working plane of the lower spring grin 28 of the valve actuators.

In connection with the relation and oper ation of 'parts constituting the improved motor, is to be noted the fact that the spring valve operutin' arms 27 and 28 are weaker than the flui pressure employed, in the motor. That is, the said springs are con structed sufficiently week so as to be weaker than the lowest pressure which will successfully operate the motor, thus insuring the holding of the valves absolutely 'closedb the fluid pressure at all times and under al conditions except whenit is proper for the valve to be opened, thus obviatingsny lost motion Whatever and also "obviating the chattering or hammering, which isan objection to the valves of oscillating motors. Furthermore, the feature referred to permits the motor to be operated in e practical manner with l :1 wide range of pressures, working equally well whether the water pressureis'quite' low or quite high.

Referring more particularly to the operation of the psrts in connection with the weak' springs 27 and 28 above be assumed in the first instance that the parts. occupy the ositions shown in'Fig. 1 n such positions t e fluid isexerting a pressure in the direction of the dotted arrow against the valves, thus hol din the inlet and exhaust valve heads at that si e of the valve cage respectively opch' andclosed, 'as plainly entioned, it may.

shown in Fig. 3 ofthe drawings, ,henc'e per mittin the fluid to enterthe-cylinder from I the in ct chamber 39 past the open inlet valve head and exerting pressure against one side of the piston so as to cause-the latter to move in the direction of the full line arrow. The piston continues to move in the direcseats 44 surround the outlet ports 46 for the 5 tion indicated until the upper spring. 27 at signed to be covered and uncovered by the 10 osite spaced and vs vs heads 47 mounted on a. common valve stem 48 so as to provide the said double inlet cylinder The said inlet ports 45 are do one side thereof comes in revcrsely disposed i side of the valve cage, but as the s contact Wltl'l the.

tic

said spring is flexed heck egoiloet the elicit" l shis'rct inetel, inlet and outlet meet 29 (us pleioly shown in Fig. 2), Where 5 upon the piston sterte to open the inlet valve head ct the then closed side, with the result of immediately releasing or Mile g the pressure at the opposite side of the valve cage, so that both 5 ringerme 2'7 and 28 comedoto lay and e m" 1y reverse the po sitions of lioth valves mm the qaoeitione shown in Fig. 3, with the oooseuenoe oi o ening'op on exlmuet for the c inder on t c rctum sweep of the iston ood thc open-- ing up oi the supply of mid-to im cl the is-- ton on such return movement. '10, this op mom, enothcr'feeture "to note is that when the springs 27 and 28 are permitted to come; into play, the piston has moved so for that said sprmgs remcin milder tension after the shifting of the valves so co to hold seid valves firmly upon their seats until the pressure hes reached the point for starting back the piston? This detail is of importance to prevent the chattering or hammering of the valves.

The operation described repeats iteeli from.

side to side of the valve ccge as the motor continues to run. l

From the foregoing it is thought thet the construction, operation, and many edvom tcgec of the herein described hydmolic mo tor will be readily apparent without further description.

' I claim:

1, oscilletiog motor comprising a cvliiidel', e redielly arranged. interior veiveoeii'c, separate double ttcting inlet end outlet valves having stems projecting hey'ond both sides of the cege, on. oscillating;piotoo, end at valve ectuetoi" fitted to each oi the piston and consisting; of c opting hod plate provided at opposite edge portions Witl'i oormelly ofi stcnding'r spring valve operating arms, end a, rigid vet 'vc releasing elmtmeot wronged lie-- hind end in the path. of the. free end of the o ring arms cooperating with thcstem of the ouhle cctin'g inlet vztlvew 2. An oscillating :motor comprising a cyl-- indcr, an interior volve ccgc struck up from see-ce t oceillot TC, pietoiiw in oscillcting motoricomprising a c lindei', on interior valve cage coneistiog oi pliccte cosine lELtBS having struck up valve seats, the ice and outlctvaives, ewd the piston. 1

4L A11 oscilleting motor comprising a cylinder, on interior velve cegeconsieting of a pair of duplicate complemcntol casing plates arranged spaced relation. and provided with paired cots of struck up valve seats,

dou'ble acting valves coo ereting with the valve seats ofthe cage, e11- the piston.

5 An oscillating motor col'npi'isieg a, Gil. a

inder, an interior velvc cage consisting 0 pair of duplicate complementel casing" plates secured. toqcthci' in spaced relation and formed with paired sets of struck up valve sects, certain oi; said valve sects being out- Wa-rdly facing and the others being inwardly facing, a doulole acting inlet valve ccnsistin oi a stem and c pair of reversely arranged valve heads cooperating with one Pair of said valve seats, on outlet valve conslsting of a valve stem. and a pair of valve heads coopercting with the other of said. valve seats, and the oscillating piston. e

6. An oscillating motel" comprising :1 cy inder, on interior valve cage consisting of a pair of duplicate complemental casing plates secured together in spaced relation and formed with separate sets of inlet and outlet ports, the valve cage also having separated inlet and outlet chambers communicating reeieotively With the cylinder and said inlet outlet ports, a double acting inlet valve cooperating with the inlet ports, a double acting outlet valve cooperating with the outlet ports, and c piston carrying velvecctuctone; means, l

In testimony whereof I hereunto cilix my signature in the presence of two Witnesses.

RALPH BROWN GOODRICH. W? to csses L. M. BRYAN, 0. It DAUGHERTY.

valves, and on 

